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Finding the Fourth Proportional to 430,924.52, 644,812.13 and 253,515.08

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Solution

The fourth proportional to 430,924.52, 644,812.13 and 253,515.08 is: 379,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,924.52 : 644,812.13 = 253,515.08 : x
  2. Step 2: Convert to fraction form
    430,924.52/644,812.13 = 253,515.08/x
  3. Step 3: Cross multiply
    430,924.52x = 644,812.13 × 253,515.08
  4. Step 4: Simplify right side
    430,924.52x = 163,469,599,066.38
  5. Step 5: Solve for x
    x = 163,469,599,066.38/430,924.52
  6. Step 6: Final answer
    x = 379,346.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.